METHOD FOR PREPARING CARBON MATERIAL HAVING METAL CARRIED THEREON

摘要

[PROBLEMS] To provide a novel technical means for controlling the position whereon a metal is carried and further for controlling the amount of a metal to be carried, which allows the selection of the type of function or the degree of activity as a catalyst, an adsorbing agent, a reactant or the like. [MEANS FOR SOLVING PROBLEMS] A method for preparing a carbon material having a metal carried thereon, which comprises contacting a solution containing the metal with a carbon material or the carbon material having been subjected to an oxidation treatment, a reduction treatment or an oxidation-reduction treatment, to thereby allow the material to carry the metal while controlling the position whereon the metal is carried; the above method, characterized in that the above control of the position for carrying comprising the contact of a carbon material with a solution containing a metal is achieved by changing a hydrogen ion concentration of the solution; and the above method, characterized in that the above carbon material is carbon nanohorn.